Top Alternatives to SmartShield

Reboot Restore Rx (freeware) prevents any and all changes made on your drive(s) making those PC's bulletproof and unbreakable.

Deep Freeze software on-premise or cloud is a reboot to restore solution to protect your Enterprise computers, Mac and Servers.

Toolwiz Time Freeze is an easy and effective Instant system restore software to keep your system safe and protect your computer from unwanted changes.

Comodo Time Machine (CTM) is a powerful, system-rollback utility available for download, which enables Windows-based users to quickly restore their computers system in case of damages or malware attacks.

Clean Slate is a nonrestrictive hard drive protection & restore technology, discards unwanted user changes at log off or reboot, no partitioning ever, effortless Windows Updates support, seamless AV Updates, easy application blocking, enable-disable-configure with no rebooting ever, super flexible, easy, secure.

Shadow Defender is an easy-to-use PC/laptop security and privacy protection tool for Windows operating systems.

Lethe is a GPL Partition Freezing Software.

Toolwiz Time Freeze is an easy and effective Instant system restore software to keep your system safe and protect your computer from unwanted changes.